Leases (Other Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Lease [Member]
Lessee Lease Description [Line Items]
Cash flows from operating activities - operating leases	$ 1,301	$ 1,135	$ 1,119
Cash flow from investing activities	837	758	500
Operating right-of-use assets obtained in exchange for new lease liabilities	2,074	2,161	1,997
Finance Lease Paid To Equity Company [Member]
Lessee Lease Description [Line Items]
Cash flows from operating activities - finance leases	20	20	20
Finance Lease Paid To Third Parties [Member]
Lessee Lease Description [Line Items]
Cash flow from financing activities	121	86	149
Finance right-of-use assets obtained in exchange for new lease liabilities	$ 109	$ 529	$ 73